Tool

Random

  • Generate random numbers in any range. Use it even when you need dice.
    You can also sort the results in ascending order, hide them and show them one by one with a click.
  • Draw lots randomly from any list.
    You can also decide the order and group (team).
  • Randomly combine two words to create a new name.
    Use it when you have trouble thinking of an account name or other name.
  • Randomly generate strong passwords. If you have trouble thinking of passwords, this is a good option for you.
    Password length is more important than complexity. The generation process is done locally and not sent to the server.

String

  • This is a string generation tool (for developers) that may be useful for checking the length of strings.
    It is mainly used to create test data for string checking of input values. Feel free to use it.
  • Convert Japanese hiragana and katakana to Hepburn romanization.
    You can also reverse conversion from Hepburn romanization to Japanese hiragana.
  • Convert Japanese hiragana and katakana to Kunrei-shiki romanization.
    You can also reverse conversion from Kunrei-shiki romanization to Japanese hiragana.
  • Interconvert between space separated, camel case, pascal case, snake case and kebab case.

ASCII Art

Image

  • Create dummy images that can be used for mock-ups, etc.
    Can be created in PNG, GIF, JPEG, or WebP format.
  • Convert any text to image.
    ASCII art and emojis can be converted directly into image.
  • You can check the Exif info (thumbnail, shooting date, shooting location, camera, software, etc.) embedded in the JPEG image.
    You can also delete the Exif info.
  • Convert images in PNG, GIF, JPEG, WebP or BMP format to images in ICO format (also known as "favicon.ico" format).
    It is also possible to create a single ".ico" file that contains images of multiple sizes (multiple-icon).
  • Generate a QR code from any text. You can also use emojis etc.
    Use it when you have trouble entering long URLs or large amounts of text.

Utility

  • Hash Calculator

    Popular
    Calculate hash values (message digests) using various hash algorithms.
    HMAC hash values can also be calculated.
  • Convert any time to a specific format and any time zone.
    You can convert to the local time of major cities around the world.
  • List and compare major fonts.
    This is a font comparison tool for finding the font you want.

URI / URL

  • Convert (encode/decode) data URIs. You can also convert files other than images.
    If you use the URI incorrectly, it loses its advantage and becomes counterproductive, so be careful when using it.
  • Convert (encode / decode) using the URL encoding (Percent-encoding) method.
  • Parse the structure of the URL and display the components of the URL, query parameters, etc.
    It is used to check the structure of long URL.

JSON

  • Convert JSON and YAML to each other.
  • Format JSON text into a readable format (Pretty Print / Beautify).
    Formatting is done locally. It is not sent to the server.

Binary To Text

Other

  • Automatically generate English drills and math drills that can be used for basic study.

If you have any requests, please feel free to contact us via Twitter or Contact.
Also, if you find a problem or bug, it would be helpful if you could contact us.

News

  • 2022/11/24 NEW
    Added "QR Code Generator" to "Tool".
    Generate a QR code from any text. You can also use emojis etc.
    Use it when you have trouble entering long URLs or large amounts of text.
  • 2022/11/23 NEW
    Added "Random Picker" to "Tool".
    Draw lots from any list.
    You can also decide the order and group (team).
  • 2022/11/01
    The tools "Terminal ASCII Art Generator", "Browser Console ASCII Art Generator", "IDN Conversion Tool", and "uuencode / uudecode Tool" are no longer available.
  • 2022/10/02
    Added "Text Image Generator" to "Tool".
    Convert any text to image.
    ASCII art and emojis can be converted directly into image.
  • 2022/09/30
    Added "Convert this result to an image" to the tools "Huge ASCII Art Generator" and "Braille ASCII Art Generator".
    You can convert the generated ASCII art from text to image.